This time last year we heard from Martin "Opus" Richard who was airborne in an F-15 Eagle over Manhattan during the terrorist attacks on 9/11/01.

This year, on the 20th anniversary of that fateful day, we hear from Tim "Conk" Conklin of the Colorado Air National Guard who was also airborne, only in an F-16 Viper and over Denver and Cheyenne Mountain, Colorado, far from the actual attacks.

While we now understand who was behind those events and the extent of their plans, the fog of war during the early hours of the attack was almost fatal for "Bob," the unwitting general aviation pilot who took off prior to the attacks and returned only hours later to a much different world...